Wave effect in gravitational lensing by a cosmic string

Kazuhiro Yamamoto, Keiji Tsunoda

Published 2003-09-25Version 1

The wave effect in the gravitational lensing phenomenon by a straight cosmic string is investigated. The interference pattern is expressed in terms of a simple formula. We demonstrate that modulations of the interfered wave amplitude can be a unique signature of the wave effect. We briefly mention a possible chance of detecting the wave effect in future gravitational wave observatories.